CN1977517A - Method for transmitting packets in a transmission system - Google Patents
Method for transmitting packets in a transmission system Download PDFInfo
- Publication number
- CN1977517A CN1977517A CNA2005800221658A CN200580022165A CN1977517A CN 1977517 A CN1977517 A CN 1977517A CN A2005800221658 A CNA2005800221658 A CN A2005800221658A CN 200580022165 A CN200580022165 A CN 200580022165A CN 1977517 A CN1977517 A CN 1977517A
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- grouping
- rtp
- mpeg
- packets
- timing reference
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000004044 response Effects 0.000 claims abstract description 3
- 238000005538 encapsulation Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000033764 rhythmic process Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 101000969688 Homo sapiens Macrophage-expressed gene 1 protein Proteins 0.000 description 1
- 102100021285 Macrophage-expressed gene 1 protein Human genes 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/24—Systems for the transmission of television signals using pulse code modulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2381—Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/70—Media network packetisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/6437—Real-time Transport Protocol [RTP]
Abstract
A method for transmitting first packets encapsulated in second packets in a transmission system in which part of the first packets contain a first timing reference for synchronization of a receiver clock and at least part of said second packets contain a second timing reference for reducing transmission jitter of the second packets at the receiver is described. This method is characterized by the steps, at the transmitter, collecting first packets, determining whether a collected first packet contains a first timing reference and triggering transmission of a second packet encapsulating collected first packets including said first packet containing the first timing reference in response to a positive determination.
Description
Technical field
File RFC 2250[3] described and how in the payload of RTP grouping, to have carried several MPEG2 transmission streams and program stream grouping, and also specified and enclosed single markers for each RTP grouping.
MPEG-2 standard [1] has been described: how markers is included in the MPEG2 stream, how to use different markers to recover clock with the clock synchronization of source in the target location, and in the time will showing the element of the stream that is transmitted, how to use different markers to supply with mpeg decoder.
DVB-IP standard [4] has been described the general structure that multimedia service distributes on IP network.This standard adopts RFC 2250 as the mechanism that is used for transmitting MPEG-2 stream on RTP.The chances are uses the standard of RFC2250 for this.
Owing in single RTP grouping, carry several MPEG-2 groupings, so, then need to make some hypothesis if will truly rebuild the timing that all MPEG-2 divide into groups in target side.Usually hypothesis: all the MPEG2 streams are constant bit rate stream, perhaps are piecewise constant at least, that is: bit rate only changes when being inserted into PCR or SCR markers in the stream.This is not to set up, and especially, but be not only when only having carried part MPEG2-TS (stream with ' room (holes) '), for example to be initially the stream that constant bit rate stream has still wherein been deleted the grouping of certain (may be big) quantity.
If in this RTP grouping, carried many MPEG2 groupings, then when finishing the structure of RTP grouping, create the RTP markers, promptly when last MPEG-2 grouping arrives transmitter.Generating the RTP grouping from part TS finishes according to Fig. 3.
Background technology
In target side, this means that it is known having only this last grouping time; Can only estimate the time of all other MPEG-2 groupings.When the RTP buffer was put in the MPEG-2 grouping, the timing of the reconstruction of grouping comprised the uncertain shake that provides by the time.This shake equals the time difference (target is poor when promptly equaling them) of two RTP transmission packets subsequently.Now, the MPEG-2 clock recovery is extracted PCR or SCR markers from this ' shake ' stream, and they are provided to PLL so that rebuild the MPEG clock.The additional dither of introducing by RTP transmission make this PLL need than under the situation that directly sends mpeg stream (not having RTP) more effective.It has also caused with the long time before the clock synchronization.
Summary of the invention
The present invention partly is to recognize the problems referred to above, and part is to have proposed the solution as defining in claims.
The present invention relates to a kind of method that is used for being encapsulated in first grouping in second grouping in the transmission system transmission, wherein the part of first grouping comprises the first synchronous timing reference that is used for receiver clock, and comprise second timing reference that is used to reduce by second transmission packets shake of receiver place to described second grouping of small part, it is characterized in that comprising the steps: at the transmitter place
-collecting first divides into groups;
-determine whether the first collected grouping comprises first timing reference;
What-response was sure determines, triggers second transmission packets of the first collected grouping of encapsulation, and the first wherein collected grouping comprises described first grouping that comprises first timing reference.
According to the embodiment of the invention, if further comprising the number of the first collected grouping, this method reaches predetermined value, then trigger the step of second transmission packets.
According to the embodiment of the invention, first grouping is the mpeg 2 transport stream grouping, and very first time reference is PCR.
According to the embodiment of the invention, second grouping is the RTP grouping, and second time reference is determined, is used for and the combined markers of independent RTP grouping by conveyer.
According to the embodiment of the invention, this method further comprises maximum time at interval the step of investigation between the transmission of two continuous RTP groupings.
Description of drawings
By description specific, non-restrictive example of the present invention, more advantages of the present invention will become obvious.The present invention will be described with reference to the drawings, and accompanying drawing has:
Fig. 1 is the diagram of diagram by the jitter problem of the encapsulation generation of MPEG 2TS grouping;
Fig. 2 is similar to diagram Fig. 1, that use embodiment of the invention reduction shake;
Fig. 3, prior art is the block diagram according to the conveyer of prior art;
Fig. 4 is the block diagram according to the conveyer of the embodiment of the invention;
Fig. 5 is the receiver of RTP grouping of encapsulation MPEG 2TS grouping and the block diagram of decoder.
Embodiment
The embodiment of the invention relates to part MPEG-2 TS (transmitting stream).Yet the present invention is not limited only to part MPEG-2 TS stream.It can be applied to complete MPEG-2 TS stream, also can be applied to occur similar synchronously and the grouping of other type of jitter problem transmission.
Phenomenon is introduced in the shake that illustrates of Fig. 1.The top row of this figure illustrates the complete multiplexing MPEG 2 TS stream that comprises independent MPEG 2TS grouping.From complete stream, extract part stream.Target grouping when comprising MPEG 2 PCR of system is shown as indicated.Here suppose: RTP grouping payload is made of four MPEG 2 TS groupings, and whenever four MPEG 2 PS groupings appear in the sender buffer, just sends a RTP grouping.Go out as shown, on transmitter stage, dTA and dTB represent the real-time interval between the RTP grouping subsequently respectively.These also are enough MPEG 2 TS of collecting the payload be used to fill each RTP grouping needed intervals of dividing into groups.After having sent these groupings, this timing relationship is revised by the shake of introducing by network.One receives, and just uses the RTP markers to recover dTA and dTB.Yet, the inventor has realized that: suppose that all MPEG 2 TS groupings that receiver receives single RTP grouping simultaneously (promptly, when the RTP of RTP packet header markers during, they are fed to the receiver buffer as pulse train (burst)) corresponding to the RTP clock of receiver.Therefore, because the time interval between the grouping of two continuous MPEG 2 TS in the primary flow may be different with the time interval that each of these groupings is written in the buffer of receiver decoder, so introduced additional dither.
As long as suggestion comprises the MPEG-2-TS of MPEG-2 PCR and divides into groups to occur, just send the RTP grouping, and divide into groups to arrive its maximum specification (the typically payload of dividing into groups) up to RTP and just systematically wait for to send the RTP grouping corresponding to 7 MPEG-2 TS.Therefore, use the fixed delay of comparing with the reception of MPEG 2 groupings that comprise this time reference to generate the RTP markers.
From complete TS, extract part MPEG 2 TS in sender side.Analyze the head of all TS groupings, and judge whether they comprise PCR markers (owing in head it being sent signal, so this accomplishes easily).When being not this situation, the RTP buffer is put in the TS grouping.When buffer full (in order to be no more than maximum ethernet payload, normally after 7 TS groupings.Other standard or other maximum specification can be arranged), come to RTP grouping timing mark by the 90kHz clock of common free-running operation, and as sending usually.When TS grouping comprises PCR, also put it into the RTP buffer, but then immediately to RTP grouping mark regularly, and send, and (for example buffer full) condition of not waiting for other.Therefore always will this timing target MPEG 2 divide into groups to be placed on the divide into groups afterbody of payload of RTP.
Fig. 4 is the block diagram of the associated components of display receiver.
In case received the RTP grouping at opposite side, it carried out buffered.When RTP markers and the local 90kHz clock of grouping+when fixing delay is mated, they are discharged from this buffer.Can be by any way with local 90kHz clock synchronization to the 90kHz clock of transmitter, for example the PLL at network interface place can check markers in the RTP grouping in the time of advent, and the value of regulating local clock is to keep synchronously with transmitter clock.Output place of this whole mechanism of describing in Fig. 5 is presented the decoder to MPEG2 with the approximate rhythm and pace of moving things that approaches to send the RTP grouping with MPEG 2 TS grouping.The fact of the last grouping because the MPEG 2-TS that carries PCR divides into groups in the RTP grouping always is so the RTP markers is set up the rhythm and pace of moving things of the rhythm and pace of moving things that is equal to MPEG 2 TS PCR grouping fully.Eliminated the relevant shake of mentioning with Fig. 1, this is because MPEG 2 TS of any maintenance PCR grouping and time interval of transmitting between the RTP grouping beginning of this shake are fixed.Although in the present embodiment, the last grouping always MPEG 2 TS of maintenance PCR divide into groups in the RTF grouping, but its position of satisfying its appearance in each RTP grouping is maintained fixed.At receiver-side, owing to rebulid the RTP rhythm and pace of moving things, the MPEG 2-TS grouping rhythm and pace of moving things is also set up with the accuracy higher than the thick packetizing (raw packetization) of Fig. 1.Fig. 2 has provided the example according to the scheme of the embodiment of the invention, has the RTP encapsulation of maximum four MPEG 2-TS grouping for each RTP grouping.In this case, the time difference between two MPEG 2-TS of receiver side divide into groups is quite near the time difference between two MPEG 2 TS groupings of sender side, and therefore the mpeg decoder clock again synchronously will be faster.
Notice that this can combine with other condition: according to different embodiment, for example limiting the maximum time interval between the continuous RTP grouping, may be interesting so that conveniently recover the RTP clock at receiver.
Also can have and the highlyest may priority improve the present invention by the IP grouping that setting comprises PCR or SCR.For example, in the DVB-IP framework (referring to list of references), might independent packet-priority be set for certain quality of service (for example using the DiffServ code point in the head of dividing into groups) is provided in this paper ending.This will guarantee, this IP grouping will be as small as possible concentrated through the possible router of being created by other Network, and therefore will from source server the time that this IP grouping sends to client's register (box) be increased more multistability to being used for.
The present invention reduces the shake in the MPEG clock recovery, and keeps deferring to RFC 2250.If the buffer in the decoder is enough to keep the content (common 7 MPEG, 2 TS grouping=7*188 bytes) of a RTP grouping, then or even for part transmit stream, also can use the MPEG2 decoder of standard.
If MPEG 2 system flow are carried for example MPEG 4-Part 10[2] compression video, then this also is applied to MPEG 2 system flow.
List of references:
[1]ISO/IEC?13818-1：2000?Information?technology-Generic?coding?ofmoving?pictures?and?associated?audio?information：Systems，InternationalStandards?Organization.
http：//www.iso.org/iso/en/CatalogueDetaiPage.CatalogueDetail？CSNUMBER＝31
537
ISO/IEC?13818-2：2000?Information?technology-Generic?coding?of?movingpictures?and?associated?audio?information：Video，International?StandardsOrganization.
http：//www.iso.org/iso/en/CatalogueDetaiPage.CatalogueDetail？CSNUMBER＝31
539
[2]MPEG-4?Video：ITU-T?Rec?H.264|ISO/IEC?14496-10?InformationTechnology-coding?of?audio-visual?objects-Part?10：Visual
[3] IETF RFC 2250, RTP Payload Format for MPEG1/MPEG2 Video, D.Hoffman et al., January 1998, for example can
Http:// www.ietf.org/rfc/rfc2250.txtThe place obtains.
[4]DVB?TM3022，Digital?Video?Broadcasting(DVB)-Transport?of?DVBServices?over?IP，ETSI，RTS/JTC-DVB-93，2004-03-26
Further information about MPEG 2 videos and mpeg system obtains in the file below: ISO/IEC 13818-1:2000 ' Information Technology-Generic coding of movingpictures and associated audio information:Systems, ISO ' and ISO/IEC13818-2:2000 ' Information Technology-Generic coding of moving pictures andassociated audio information:Video, ISO '.
Claims (5)
1. be used for sending the method that is encapsulated in first grouping in second grouping in transmission system, wherein the part of first grouping comprises the first synchronous timing reference that is used for receiver clock, and described second grouping comprise second timing reference that is used to reduce by second transmission packets shake of receiver place to small part, it is characterized in that comprising the steps: at the transmitter place
-collecting first divides into groups;
-determine whether the first collected grouping comprises first timing reference;
What-response was sure determines, triggers second transmission packets of the first collected grouping of encapsulation, and the first wherein collected grouping comprises described first grouping that comprises first timing reference.
2. the method for claim 1 reaches predetermined value if also comprise the number of the first collected grouping of following steps, then triggers the transmission of second grouping.
3. method as claimed in claim 1 or 2, wherein first grouping is the MPEG2 transport stream packet, and very first time reference is PCR.
4. as the described method of claim 1 to 3, wherein second grouping is the RTP grouping, and second time reference is by the determined markers that merges in the independent RTP grouping of transmitter.
5. method as claimed in claim 4 also comprises the maximum time step of investigating between two continuous RTP transmitted in packets at interval.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04291672A EP1613016A1 (en) | 2004-07-01 | 2004-07-01 | Method for transmitting packets in a transmission system |
| EP04291672.6 | 2004-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1977517A true CN1977517A (en) | 2007-06-06 |
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| CNA2005800221658A Pending CN1977517A (en) | 2004-07-01 | 2005-06-22 | Method for transmitting packets in a transmission system |
Country Status (12)
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| US (1) | US7924889B2 (en) |
| EP (2) | EP1613016A1 (en) |
| JP (1) | JP4616343B2 (en) |
| KR (1) | KR101151390B1 (en) |
| CN (1) | CN1977517A (en) |
| AU (1) | AU2005259240B2 (en) |
| BR (1) | BRPI0512606B1 (en) |
| DE (1) | DE602005015970D1 (en) |
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| RU (1) | RU2369978C2 (en) |
| WO (1) | WO2006003105A1 (en) |
| ZA (1) | ZA200610519B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101184035B (en) * | 2006-11-14 | 2012-09-26 | 株式会社东芝 | Broadcast transport stream distribution system, and broadcast transport stream distribution apparatus, user terminal device and distribution method for use in the system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2911460A1 (en) | 2007-01-16 | 2008-07-18 | Thomson Licensing Sas | RAPID INITIALIZATION OF THE VIDEO TIME BASE GENERATING A SYNCHRONIZATION SIGNAL IN A PACKET SWITCHED NETWORK |
| EP2003844A1 (en) * | 2007-06-13 | 2008-12-17 | Thomson Licensing | System and method for transport of a constant bit rate stream |
| CN101494613B (en) * | 2009-02-24 | 2012-04-04 | 华为技术有限公司 | Method for clock message tunnel transmission, network node and communication system |
| CN102684993B (en) * | 2009-02-24 | 2015-03-25 | 华为技术有限公司 | Clock message tunnel transmission method, network node and communication system |
| JP5544863B2 (en) * | 2009-12-17 | 2014-07-09 | 富士通株式会社 | Reception device, reception method, and reception program |
| US8514329B2 (en) | 2011-05-31 | 2013-08-20 | Motorola Mobility Llc | Jitter estimation for MPEG receivers |
| WO2013009132A2 (en) * | 2011-07-13 | 2013-01-17 | 한국전자통신연구원 | Apparatus and method for transmitting packet and apparatus and method for receiving packet in mmt system |
| WO2013009131A2 (en) * | 2011-07-13 | 2013-01-17 | 한국전자통신연구원 | Apparatus and method for transmitting packet and apparatus and method for receiving packet in mmt system |
| JP7210272B2 (en) * | 2018-12-28 | 2023-01-23 | 株式会社東芝 | Broadcast system, encoder, multiplexing device, multiplexing method, system switching device, and synchronization control device |
| JP2022181432A (en) * | 2021-05-26 | 2022-12-08 | Ｎｅｃプラットフォームズ株式会社 | Receiving device, method, and program |
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| US6785733B1 (en) * | 1997-09-05 | 2004-08-31 | Hitachi, Ltd. | Transport protocol conversion method and protocol conversion equipment |
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| US7159233B2 (en) * | 2000-01-28 | 2007-01-02 | Sedna Patent Services, Llc | Method and apparatus for preprocessing and postprocessing content in an interactive information distribution system |
| JP4407007B2 (en) * | 2000-05-02 | 2010-02-03 | ソニー株式会社 | Data transmission apparatus and method |
| KR100441589B1 (en) | 2002-04-01 | 2004-07-23 | 삼성전자주식회사 | Apparatus for generating/restoring RTP packet and method thereof |
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| US7342968B2 (en) * | 2003-08-13 | 2008-03-11 | Skystream Networks Inc. | Method and system for modeling the relationship of the bit rate of a transport stream and the bit rate of an elementary stream carried therein |
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| CN1906909B (en) * | 2004-01-07 | 2010-06-02 | 松下电器产业株式会社 | Data reception device |
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2004
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2005
- 2005-06-22 AU AU2005259240A patent/AU2005259240B2/en not_active Ceased
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- 2005-06-22 ZA ZA200610519A patent/ZA200610519B/en unknown
- 2005-06-22 MX MXPA06015218A patent/MXPA06015218A/en active IP Right Grant
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101184035B (en) * | 2006-11-14 | 2012-09-26 | 株式会社东芝 | Broadcast transport stream distribution system, and broadcast transport stream distribution apparatus, user terminal device and distribution method for use in the system |
| CN102868680A (en) * | 2006-11-14 | 2013-01-09 | 株式会社东芝 | Broadcast transport stream distribution system, broadcast transport stream distribution apparatus and distribution method for use in the system |
| US8832291B2 (en) | 2006-11-14 | 2014-09-09 | Kabushiki Kaisha Toshiba | Broadcast transport stream distribution system, and broadcast transport stream distribution apparatus, user terminal device and distribution method for use in the system |
| CN102868680B (en) * | 2006-11-14 | 2015-04-01 | 株式会社东芝 | Broadcast transport stream distribution system, broadcast transport stream distribution apparatus and distribution method for use in the system |
Also Published As
| Publication number | Publication date |
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| BRPI0512606B1 (en) | 2018-11-06 |
| WO2006003105A1 (en) | 2006-01-12 |
| ZA200610519B (en) | 2009-02-25 |
| BRPI0512606A (en) | 2008-03-25 |
| JP2008504763A (en) | 2008-02-14 |
| AU2005259240B2 (en) | 2010-02-18 |
| MXPA06015218A (en) | 2007-03-26 |
| DE602005015970D1 (en) | 2009-09-24 |
| US7924889B2 (en) | 2011-04-12 |
| RU2369978C2 (en) | 2009-10-10 |
| RU2007103829A (en) | 2008-08-10 |
| KR101151390B1 (en) | 2012-07-09 |
| EP1613016A1 (en) | 2006-01-04 |
| EP1762078B1 (en) | 2009-08-12 |
| KR20070034008A (en) | 2007-03-27 |
| US20080187008A1 (en) | 2008-08-07 |
| AU2005259240A1 (en) | 2006-01-12 |
| JP4616343B2 (en) | 2011-01-19 |
| EP1762078A1 (en) | 2007-03-14 |
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